/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package cn.net.greenet.logmanage.servlet;

import cn.net.greenet.logmanage.logic.LogManageService;
import cn.net.greenet.logmanage.logic.bean.DPIEndPointBean;
import cn.net.greenet.logmanage.logic.common.DBUtils;
import com.j256.ormlite.support.ConnectionSource;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

/**
 *
 * @author dongqiang
 */
@WebServlet(name = "QueryDevice", urlPatterns = {"/log/device/list"})
public class QueryDevice extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("application/json;charset=UTF-8");
        PrintWriter out = response.getWriter();
        
        ConnectionSource conn = null;
        try {
            conn = DBUtils.getConnectionSource();
            LogManageService service = new LogManageService(conn);
            List<DPIEndPointBean> beans = service.getDeviceList();
            
            JSONArray devices = new JSONArray();
            if (beans != null) {
                Iterator<DPIEndPointBean> it = beans.iterator();
                while (it.hasNext()) {
                    DPIEndPointBean bean = it.next();
                    JSONObject o = new JSONObject();
                    o.put("id", bean.getId());
                    o.put("name", bean.getName());
                    o.put("ip", bean.getMasterIp());
                    o.put("isCCOn", bean.isClientChannelConnected() ? 1 : 0);
                    o.put("isSCOn", bean.isServerChannelConnected() ? 1 : 0);
                    
                    devices.add(o);
                }
            }
            out.print(devices.toString());
        } catch(Exception ex) {
            Logger.getLogger(QueryDevice.class.getName()).log(Level.SEVERE, null, ex);
            out.print("[]");
        } finally {  
            DBUtils.closeConnectionSource(conn);
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
